Reversing mechanism for cylinder washing-machines



r. BALZER. I REVERSING MECHANISM FOR CYI.|NDER WASHING MACHINES.

APPLICATION FILED .IUNE 8,1916- 7 1,376,393. Patented May 3, 1921,

6 SHEETS-SHEET I.

' 7 T/izfen for: fimmer F. BALZER.

BEVERSING MECHANISM FOR CYLINDER WASHING MACHINES.

Patented 1133 3, 1921.

6 SHEETS-SHEET 2.

APPLICATION FILED JUNE 8. I916.

i .|1|m1\M *3 5 M9 5 s Q Min K. w R

3? 3.. Q I!!! mmvq E i -v 7 a... IIIHHLW 3 Q g I I H i HIl|||-="' III-Illllllllmllll F. BALZER.

REVERSING MECHANISM FOR CYLINDER WASHING MACHINES.

APPLICATION FILED JUNE 8, I916.

1,376,393. Patelited M313, 1921.

6 SHEETS-SHEET. 3.

WEN

7Zz Z7z 3 I ,Ziz z/ezzzbr F. BALZER.

REVERSING MECHANISM FOR CYLINDERWASHING MACHINES.

APPLICATION FILED JUNE 8,19l6.

1,376,393. Patentd May3,1921.

6 SHEETS-SHEET 4.

F. BALZERf REVERSING MECHANISM FOR CYLINDER WASHING MACHINES.

APPLICATION FILED JUNE 8, 1916.

1,376,393. Patented May 3,1921.

6 SHEETS-SHEET 5.

V ,ZZZ' LEQZZ 7" F. BALZER.

REVERSING MECHANISM FOR CYLINDER WASHING MACHINES.

APPLICATION FILED JUNE 8, I916. 1,376,393. Patented May 3, 1921.

6 SHEETSSHEET 6.

ll IIll IIIIIII I IIIIII ImI IIIIIIIII UNITED srArEs PATENT OFFICE q.

FBI'IZ'BALZER, or cgica'ao, rumors; ASSIGNOR T0 may mean macnmmnr comrm,mn, or cnrcaeo, rumors, A CORPORATION or new YORK,

' imvnnsme 'M onAmsM roa'cvnmnnn was'nme-macnmns.

To all whom it may concern: 7

Be it known that I, FRITZ BALZER,

ject of the Emperor of Germany, residing at Chicago, in the county ofCook and State-" of Illinois, have invented certain new and usefulImprovements in Reversing Mechanism for Cylinder Washing-Machines, ofwhich the following is a specification My invention relates, in general,to mechanism for automatically reversing the direction of the movingpart of a, machine, and more particularly to mechanism for preit hascome to a stop.

In the operation of various machines it is necessary to periodicallyreverse the-diin an opposite direction.

'rection of an element, such, for instance, as the cylinder of a washingmachine. When the power is applied to drive the moving element in areverse direction before the element has come to a stop, excessivestrain is imposed upon the motor and upon the moving parts whosedirection of movement is reversed. For example, in a washing machine inwhich the cylinder'is driven by an electric motor, the current of -which is periodically reversed in order to reverse the direction ofrotation of the cylinder,- the. motor is injured by reversingthe'current to it while the cylinder continues 'to rotate.

, One object of m invention is to provide mechanical "contro ling meansfor electri-.

cally or other power driven machines, which means, when combined with areversible machine, will control the application of i power thereto in amanner to direct the power alternately in opposite directions at theends of predeterminedperiods of drive, I

: designate similar andthrough the medium of a power-directing memberwhich is moved alternately to two power-releasing positions through thev and described my inventionas applied to a cylinder washing-machine,the cylinder of mediumfo'f an actuator that has'an initial machineimparted movement, followed by a.- self-pro'pelled actuating movement,by which it drives the power-directing member to, its

however, arrested after the initial movement and prevented fromreleasing power in the new direction until a machine-drivenmotion-controlled detent has been permitted to retire by the machinecoming to rest,

- Specificationof Letters Patent.

Another object of my invention is to pro-1 vide an organizationoperating as above outlmed, in which the actuator will drive thepower-directing member to its intermediate or arrested position, and doso by the first part of the actuators self-propelled movement, so thatthe arrest of power in one I direction, for instance, by opening anelec- -practical form, and in which Figure 1' is an elevational view ofa cylnder washing machine equipped with my invention;

Fig. 2 an enlarged sectionalview through the portion of the casing whichincloses the governor, the latter being shown. in elevas tion; p V pFig. 3 an enlarged cross-sectional view on line 3-3, Fig.4;

, 2- Patented a 3, 1921. I Application filed June s, 1916. Serial no.102,564.

simple in construction, efficient in operation,

Fig. 4 a plan vv1ew of the reversing mechanism, the top of the inclosingcasing being removed; Fig. 5 a cross-sectional view on line 5-5, Fig.4;r

Fig. 6 a detail view showing the cam,

-..actuated circuit controllers;

Fig. 7 a longitudinal section online 7-7, Fig.4, and.

ig. 8 alongitudinal sectional view on line 8-8,-Fig. 41

Similar reference characters are used to parts in the several figures ofthe drawings.

For purposes of illustration, I have shown which isrotated alternatelyin opposite div rections by means of an electric motor, the .current towhich is periodically reversed. I

My invention, is not, however, limited in its application to anyparticular machine, but

is capable of use in connection with other -machines., comprisingmovingeleme'nts, the

direct movement of which is periodically reversed. 1 i

Reference letter A indicates the shell, or casing, of a cylinderwashingJ machine, the ends of which are supported y legs a and a Aindicates the cover of the casing A,

which may be opened to permit access to the interior of the casing forthe purpose of inserting and removin articles in and from the inclosedcylinder B and B designate the trunnlons of the cylinder which pro- 'ectthrough and are journaled in the heads of the casing A.- G designatesthe usual cone duits for supplying water and suds to the casing and forpermitting their discharge therelrom. D designates an electric motorsuitably mounted upon the washin machine, as by means of a pair of rodsand D located above the top of the machine and supported at their endsby suitable brackets secured to the heads of the casing. The shaft ofthe motor D is connected by suitable gearing with one of the trunnions Bor" the cylinder, the gearing not being shown in detail as it isinclosed within a suitable housing E.

he washing machine above described does not in itself embody anyfeatures of my present invention, more fully described in detail. It is,however, shown in order that the construction and operation of myimproved reversing mechanism may be fully understood.

Supported upon the rods D and prelierably adjacent the opposite end ofthe cylinder A. from the motor D, is a casing F. Any suitable means maybe provided for mounting the casing l5 upon the rods, such for instance,as pairs of brackets f and f projecting outwardly from the sides of thecasing and overlying the said rods 13* and D 0 U-bolts f extend aroundthe rods D and D and project through holes in the said brackets f and75'", the upwardly projecting screw-threaded'ends of the U-bolts havingnuts thereon engaging the upper surfaces of the said brackets. In orderto tightly secure the casing Fto the supporting rods, clamp screws fextend. through the brackets into engagement with the said rods asclearly shown in Fig. 3. The casing F is provided with a removable coverF detachably secured thereto by any suit able fastening means, such forinstance, as

, screws F Extending longitudinally through the easing F is a shaft Glocated intermediate of, and parallel to, therods D and D The shaft Gris connected with the gearingthrou h which the motor l) rotates thecylinder When the washing machine isof the type having a driving gearwheel" secured'to both trunnions of the cylinder, the shat-t G'may bethe usual shaft, in such machines for connecting'the gear wheels at thetwo. ends of the n'nmhine Suitable bearings g and g surround. theportions of they and hence need not be tacts K and K are alternatelynotc es ing transversely within the casinfi F and rotatably supportedupon a rod One 'end of the rod H is supported in a recess formed in aremovable bearing h fixed to one side of the casing F. The other endiofthe rod H is supported within a sleeve 7?, projecting inwardly from, andrigidly secured to, the opposite side wall of the easing-Fv i Looselysupported upon the sleeve H intermediate of the inner end of the sleeveh and worm-gear H, is a tumbler, in the form of a hub 5, having rigidlysecured eccentr cally thereto a weight J and a camming arm Supportedupon the bottom of the casing F, immediately below the weight d, is afiat s ring P, which serves as a yielding support or the weight when itswings downwardly during the operation of the mechanism.

Pivotalli:I supported within the casing F is a yoke which surrounds andoscillates transversely to the yoke K is provided at the center thereofwith cylindrical bearing upon a stud Z, the latter beingsupported by alug L projecting upwardly from the bottom wall of the casin F. The innervertical surfaces of the oke are provided with inwardly projectlng camsk and whichare alternatel engaged by a cam j carried by the hub J,intermediate of the same and the weight J Carried by the opposite sidesof the yoke K, and projecting outw ly therefrom, are

wedge-shaped. Supported within the opposite end walls of the casing Fare pairs of contacts M and M between which the con forced by theoscillations of the yoke K, in a, manner subsequently to be described.

Pins f 7 Jrojecting from a face of the worm-wheel ,on opposite sides ofthe center thereof, are adapted to pick up the radially projecting cam jon hub d and move it until the weight J passes vertical position orcompletes the initial movement of the actu ator and releasessaid-actuator (J, 5 to its self-propelling actuating movement under theforce of gravity by which the cam moves against 'ene of the cams 14 ,10with ample force to snap the switch contact K K from between theterminalblades M or hit and'present the yoke K, which constitutes thepower-directing member into intermediate posit on shown in Fig, R. Hereit is arrested by the'detent n, which, as herein after described, isretained in the position of Fig, '2 so long as there is motion l theshaft G within the the hub J. The bottom of driven machine. While theparts are in the position of Fig. 7, cam 7', under the influence of thefull load of the Weight J, is resting against the cam "70 ready tocomplete the throw of the yoke k and close the cirsuit in the newdirection, by introducing contact K between terminals M whenever thedetent n is withdrawn.

Pivotally supported upon the bracket N,

suitably supported within the casing F, is.

a lever N one end of whichrigidly supports a depending detent n, whichin one position of the lever N is projected into the path of a stop isprojecting" upwardly from the center of the yoke K, The lever N isconnected by a rod n with one end'of a lever O fulcrumed upon a bracket0 secured to the end wall of the casing A, as

shown in Fig. 2. The opposite end of the of the shaft G, adjacent thering. is a collar 0 having radial lugs, to which are pivotally connecteddpairs of links 0, the opposite ends of sai links being pivotallyconnected with weights 0, said wei hts being provided with shankspivotal y connected between pairs of lugso upon a collar O fixed uponthe end of the shaft G. A spring 0 surrounds the shaft G, intermediatethe fixed collar O and the movable collar 0 the tension of which tendsto move collar 0 toward the right in Fig. 2

and thereby oscillate the lever O in a direction to swing the lever Naway from the yoke K, and remove the detent ,n from the path of the stopis on the yoke.

The operation of the reversing mechanism'above described is as follows:

The motor D rotates the cylinder B,

within the casing A through the train of gears interposed between; themotor shaft and the trunnion B of the cylinder. The shaft (i, whichrotates in synchronism with the motor and cylinder, rotatesthe sleeve Hthrough the engagement of the worm G with the worm-gear. H Assuming thatthe worm-gear H is being rotated (see Fig.

8) in clockwise direction a pin j on-the worm-gear will be moved intoengagement with the radially. projecting portion the hub J, and thefurther rotation o the worm-gear will lift theweight J until it reachesa position slightly beyond the V61" tical, when it will quickly swing bygravity toward the right, and, through the engagement of the cam j withthe cam k of the yoke, will oscillate the yoke into the -posithe right.

tion shown in Fig. 7', in which the stop is, through engagement with thedetent a, prevents further oscillation of the yoke toward This movementof the yokehas disengaged the contact K carried thereby from thepair offixed contacts M thereby interrupting the circuit to the motor. Duringthe rotation of shaft G, the centrifu a1 action of the governor causesthe weig ts 0, through the pairs of links 0, to retain the sleeve 0 in aposition to the left of that shownin Fig. 2, so that the lever O is in aposition to permit the lever N to swing downwardly into the positionshown in Figs. 7 and 8, in which the detent n is in the path of the stopis. When the rotation of the shaft G ceases," by reason of theinterruption of the circuit of the motor through the disengagement ofthe movable contact K from the fixed contacts M in the manner aboveexplained, the weights are no longer subjected to centrifugal action,and hence the spring 0 moves the collar 0 toward the right (in Fi 2) andthereby oscillates the lever 0 an throu h the connecting rod 72 swingsthe lever 1 upwardly so that the detent 'n is lifted out of the path ofthe stop 70. The weight J is therefore permitted tocontinue its downwardmovement by gravity, so that the yoke K is swung toward the rightthrough the contact of the cam j with the cam 70 Such further movementof the yoke moves thefixed contact K carried thereby into engagementwith the pair of contacts M thereby closing a circuit to the motor D torotate the same in a reverse direction.

After the cylinderhas made a predetermined number of rotations, by thecoinci-i dent rotation of the worm-geard-I in a counterclockwisedirection, the pin 7 (see Fig. 7 is brought into engagement with theprojection j on the hub J, and the weight lifted to a position slightlyto the left of the vertical, when it falls by gravity until the cam y'engages the cam 70 on the yoke and thereby oscillates the yoke to aposition in which the stop I: thereon engages the right side of thedetent a when further oscillation of the yoke will he interrufpted untilthe detent hasbeen lifted out 0 en-. gagement with the stop through theaction astop. From the foregoing description it will be seen that thecircuit to the motor cannot be Y of the spring 0 after the shaft J comesto closed to reverse the motor until the cylin- I der has ceased torotate. Injury to the mo tor, and to the movable parts connected 1 Itherewith, incident to applying power to the motor torotate the same inone direction before it, and its driven to rotate in the other direction1s therefore avoided. v p

I In the operation, by a common source of arts, cease the worm-gear H(see-Fig. 5) is a sleeve P.

V l a slot in the lever as by means 0 a rod S projecting inwardly power,of a plurality of machines, each comprising a movable member thedirection of movement of which is periodically reversed, such forinstance, as cylinder washing ma- 5 chines, it is desirable that thereversing of no two of the machines should occur simultaneously,inasmuch as the starting of the movable members requires a maximum consumption of power, and obviously for economical reasons, the periods ofsuch maximum consumption of power should occur serially, and notsimultaneously in the several machines. lln my Letters Patent No,1,238,082, issued August 28, 1917, l have disclosed a system forcontrolling electrically driven washing machines in which the cylinders,are periodically reversed in succession, the reversal of the motor ofeach machine being controlled by all of the other machines, so that notwo machines can reverse simultaneously. When my present invention isapplied to a cylinder washing machine which forms one o i a group ofsuch machines, all driven by the same source of power, it is desirablethat circuit controlling means should be provided at each machine forgoverning the reversing of the other machines in the group so that notwo machines may reverse at the same time. ll accomplish this by addinto the reversing mechanism hereinbefore escribed indetail, automaticallyoperated auxiliary circuit controllers, for controlling the circuitswhich reverse the motors of the other machines.

. Splined upon the sleeve J at the left of Surrounding and secured tothe sleeve P, are rings p p pfland 37 each of which is provided with aradially projecting cam. Loosel 1 surrounding the sleeve P is a ring 1),pre erably located intermediate oftwo of the cam rings in order to belongitudinally immovable upon the sleeve P. Projecting radially fromopposite sides of the ring ;o are studs P and P, which are surrounded byslots formed in the ends of levers Q and Q respectively. 'The levers Qand Q? are fulcrumed upon brackets g1 and secured within the end wallsof the casing Pivotally supported upon the bottom of the casing F,beneath the lever Q is a bellcrank lever B provided with an inwardlyprojecting end'terminating in the path of the yoke K; The opposite endof the bellprojecting pin-m which engages within a slot in the lever Q}.Pivotally -mounted upon the bottom of the casing F, below the lever Q isa bell-crank lever R one leg of which terminates in the path of the yokeK, while the shorter leg thereof carries an upwardly projectiig stud 1,which engages Pivotally su ported within the casing F,

crank lever B is provided with an upwardly te races therefrom (see Figs.3 and 8), are two short levers S v and S each of which is provided withan anti-friction roller resting upon a corresponding one of theunderlying cam rings on the sleeve P, The levers S and S have secured totheir ends upwardly projecting contacts 8 and. 8 over which aresupported fixed contacts 3 and The contacts and 3 may be supportedwithin the casing in any suitable manner, as by means of an extension onthe bracket N. The con-- tacts s and t cooperate to control an emailiarycircuit, such, for instance, as that of the motor of another machine,while cor.-- tacts s and t control a second circuit, such, for instance,as that of the motor of still another machine.

The sleeve P rotates in synchronism with the rotation of the worm-gearH, and as it rotates the cam on the ring p is moved beneath the rolleron the lever S thereby oscillating the same upwardly and lifting thecontact 8 into engagement with the contact 29. The rotation of thesleeve"? also causes the cam on the ring 39-" to 'ngage the roller ofthe lever S and lift t e same so as to raise the contact 8 intoengagement with the contact 25 The cams on the rings p and 32 are sorelated to each other, and also to the pin j on the worm-gear H, thatcontact is not madebetwcen the contacts 8 and 25 or the contacts .9 and6 or the contacts K and M ,at the sa e time. Consequently the circuitsof no tw of the motors of the machines in the group are closed at thesame time.

Where the machine is one of. a group of three in order that the circuitsof the motors of the other machines may be closed in proper sequence, itis necessary that when the direction of rotation of the sleeve P is ingof the machines in the circuits of which they are located. This isaccomplished by providing the second pair of cam rings p and p, the camson which are so located.

that when the rotation of the sleeve P is reversed they will be broughtbeneath the levers S and S and lift them in the same sequence that theywere lifted by the cams bn the rings 12 and when the sleeve P wasrotating in the first direction. The shifting of the cam ringsrelatively to the levers S and S upon thereversa of the direction ofmovement of the yoke K is effected by means of the yoke alternatelyengaging levers R? and R When the yoke oscillates to the left in Fig. 8,it engages the cry end of the lever B and oscillates the same in adirection to swing the lever Q toward rings 1; and 2 beneath the leversS and S. When the yo e is oscillated to the right in Fig. 8 it engagesthe lever R and oscillates the same, so as to swing the lever Q awa fromthe worm-gear H, and thereby so shift the sleeve P as to move the camrings p and p beneaththe levei's S and S It will, of course, be evidentthat any number of auxilia circuits may be controlled by merelyproviding additional pairs of contacts similar to s and t and 8 and tand providing additional pairs of cam rings on the sleeve P. It will befurther evident that if the machine is to control, and be controlled bythe reversing of only one other machine, it is unnecemary to providemore than one cam for closing the auxiliary circuit.

Inasmuch as my. invention resides in the reversing mechanism and not-inthe circuits, or in the reversing switches, I have deemed it unnecessaryto illustrate and describe the circuits of the. motor D, or of other mtors ofother machines which may be controlled by the auxiliarycontrollers. In my said coendin application, Serial No. 27,660, I

ave i lustrated and described in detail, an arran ement of circuits andreversing switches for a plurality of inter-controlling motors, but inorder that my present invention may be fullydisclosed, it is notnecessary that the circuits and reversing switches v should beillustrated or described.

'- to unduly, or any more than is pointed out.

While I have described my invention with more or less minuteness and asbeing em-. bodied in certain recise forms, yet it will be understoodthat do not limit myself therein the claims; on the contrary, Icontemplate all proper chan es in form,con'struction, and arrangement,tr e omission of immaterial parts, and the substitution of equivalents,as circumstances may suggest or necessity render expedient. I

I claim: H

1. In a mechanism for reversingthe drive of a power actuated machine, apowerdirecting member movable alternately to two power-releasingpositions, an. actuator moving in opposite directions for driving saidpower-directing member and having, in each direction, a machine-im artedinitialmovement and a self-propelled actuating move ment from the end ofsaid initial movement,

' and a machine-motion-controlled stog, arresting theower-directingmember an the actuator a ter the former has reached anintermediate position and after the latter has completed its initialmovement.

2. In amechanism for reversing'the drive of a power actuated machine, apowerdirecting member movable alternately to two power-releasingpositions, an, actuator movingi'n opposite directions for driving saidower-directing memberand having, in each 'rection, a machine-i par ditial move- -power-directing member and having, in 63f direction amachine-imparted initial movement and a self-pro elled actuatingmovement from the end 0 said initial movement,

and a machine-motion-controlled stop, arresting the power-directingmember and the actuator after the former has reached an intermediateposition and after the latter has com leted its initial movement; saidactuator eing arranged to move the powerreleasi ig member to saidintermediate posi-' tion.

3. Ina mechanismfor reversing the drive of a power actuated machine, apowerdirecting member movable alternately to two power-releasingpositions, an actuator moving in opposite directions for driving saidment and a'self-pro elled actuating movement from the end 0 saidinitialmovement,

and a machine-motion-controlled stop, arresting the power-directingmember and the actuator after the former has reached an ment from theend 0 said initial movement,

and a machi'ne-motion-controlled stop, arresting the power-directingmember and the actuator after the former has reached an intermediateposition and after the latter has completed its initial movement; saidactuator comprisin a weighted lever developing its self-pro e ledmovement by gravitation and arrange to move the power-releasing'memberto intermediate position by the first part "of its gravitating movementand remaining suspended in opposition to gravity when arrested by the.de'tent. g

5. In a mechanism for reversing the drive of a power actuated machine, apower-directing member movable alternately to two power-releasingpositions, an actuator moving in opposite directions for driving saidpowergdirecting member and hay n in each direction, a machine-im artedinitial movement and 'a self-pro el ed actuating movement from the end 0said initial movement, and a machine-motion-controlled.stop arrestingthe power-directing member and the actuator after the former has reachedan intermediate osi tion and after the latter has complete its initial-movement; said power-releasin' member com risin an oscillating yokeaving roug which to move it in opposite directions, and said actuatorcomprising a lever acting against said cams.

6. la a mechanism for reversing the drive of a power actuated machine,-a power-di-' recting member movable alternately to two power-releasingpositions, an actuator moving in opposite directions for driving said.power-directing member and having, in each direction, a machine-impartedinitial movement and a self-propelled actuating movement from the end oisaid initial movement,

and a machine-motion-controlled stop, a r-i radially ofiset weight whichinduces the selfpropelling movement of the actuator, and an arm throughwhich it acts against said cams.

7. In a mechanism for reversing the drive of a power actuated machine, apower-directing member movable alternately to two power-releasingpositions, an actuator moving in opposite directions for driving saidpower-directing member and having, in each direction, a machine-impartedinitial movement and a self-propelled actuating movement from the end ofsaid initial movement, and a machine-motion-controlled stop, arrestingthe power-directing member and the actuator after the-former has reachedan intermediate position and after the latter has completed its initialmovement; said powerreleasing member comprising a yoke pivoted atone endof its vertical axis and having its intermediate arresting positionapproximately in'equilibrium upon its pivot and its power-releasingpositions on opposite sides of said position of equilibrium.

8. In a mechanism for reversing the drive of a power actuated machine, apower-directing member movable alternately to two power releasingpositions, an actuator moving'in opposite directions for. driving saidpower-directing member and having, in each direction, a machine-impartedinitial movement and a self-propelled actuating movement from the end ofsaid initial movement, and a machine-motion-controlled stop, arrestingthe power-directing member and the actuator after the former has reachedan intermediate position and after the latter has completed its initialmovement; said power-releasing member comprising a yoke pivoted at oneend of its vertical axis and having its intermediate arresting positionapproximately in equilibrium upon its pivot and its power-releasingpositions on opposite sides of said position of equilibrium, and saidactuator comprising a lever swingupon a fulcrum above the path oi the131 yo e and acting against opposite sides of theyolre through themedium of cams.

9. in a mechanism for reversing the drive of a plurality ofpoweractuated machines,

a powendirecting member movable alter latter has assumed se f-propellingposition,

and an independent power-releasing member for a second machine,comp-rising a lever and cam connection between said lever and theactuator, positioned to actuate said lever to afiect the second machinebefore the first-named power-directing member reaches power-releasingposition.

10. The combination with a machine comprising a moving member, of anelectric motor connected to said member, a circuit controller forreversing the circuit to said motor, means actuated by a predeterminedmovement of said member for efiecting a reversing movement of saidcontroller, and means controlled by said moving member for retainingsaid controller in an inoperative position until said member ceases tomove.

1l. The combination with a machine comprising a moving member, of anelectric motor connected to said member, a controller for reversing thecircuit to said motor, means actuated by a predetermined movement ofsaid member for eliecting a reversing of said controller, meanscontrolled by said moving member for arresting thethrow of saidcontroller in an inoperative position until said member ceases to move,and a controller for a second circuit actuated by said means inpredetermined relation to said first controller.

12; The combination with a machine comprising a moving member, of anelectric motor connected to said member, a circuit controller forreversing the circult to sa1d'mo-' tor, means actuated by apredetermined movement of said member for effecting a v reversmgmovement of said controller,

mechanism operable b her for arresting the throw of said controller inan inoperative position until said member ceases to move,circuit-controllers for other circuits than that of said motorcomprising fixed and movable contacts, cams actuated by said means forclosing the com 'tacts of said controllers in predetermined said movablemem- 1 cams into operative relation to said movable contacts when thecircuit to said motor is reversed.

13. The combination with a machine comprising a moving member, of anelectric motor connected to said member, a controller for reversing thecircuit to said motor, a weight actuated by a predetermined movement ofsaid member for effecting a reversing movement of said controller, astop for arresting the throw of said controller in an inoperativeposition, and a centrifugal governor operated by said member andconnected with said stop for moving the same out of engagement with saidcontroller only when said member has substantially ceased to move.

14:. The combination with a machine comprising a moving member, of anelectric motor connected to said member, a controller for reversing thecircuit to said motor, a weight actuated by a predetermined movement ofsaid member for effecting a. reversing movement of said controller, astop for arresting the throw of 'said' controller in an inoperativeposition, means for maintaining said controller against said stop, andmeans for moving said stop .out of engagement with said controller onlywhen said member has substantially ceasedto move.

15. The combination with a machine comprising a moving member, of anelectric motor connected to said member, a controller for reversing thecircuit to said motor, a weight actuated by a predetermined movement ofsaid member for effecting a reversing movement of said controller, astop for arresting the throw of said controller in an inoperativeposition, and means operated by said member and connected with said stopfor moving said stop out of engagement with said controller only whensaid member has substantially ceased to move.

16. In a power-controlling mechanism for a plurality of reversiblemachines, a powerdirecting member for one machine adapted to assume,alternately, two power-releasing positions for the first machine, anactuator for said power-directing member, a detent arresting saidpower-directing member and actuator in intermediate position, a secondpower-releasing member for a second machine, and cam controlling meansinterposed between said actuato-r-and said second power-directingmember; said cam controlling means comprising a plurality of camsmovable alternately into controlling relation with the secondpower-directing member, and each adapted to time the operation of thesecond powerdirecting member in particular relation to one of themovements of the first power-directing member, and means for shiftingsaid cams to and from operative relation to the second power-directingmember.

17. In a power-controlling mechanism for a plurality of reversiblemachines, a powerdirecting member for one machine adapted to assume,alternately, two power-releasing positions for the first machine, anactuator for said power-directing member, a detent arresting saidpower-directing member and actuator in intermediate position, a secondpower-releasing member for a second machine, and cam controlling meansinterposed between said actuator and said second power-directing member;said cam controlling means comprising a plurality of cams movablealternately into controlling relation with the second power-directingmember, and each adapted to time the operation of the secondpower-directing member in particular relation to one of the movements ofthe first ower-directing member, and means for shifting said cams to andfrom operative relation to the second power-directing member, comprisinga lever system controlled by the first power-directing member.

In testimony whereof, I have subscribed my nam Y FRITZ BALZER.

Witnesses C. I. BELKNAP, J. E. HonmcANN.

